Search found 109 matches

by StephenW
3 Mar 2017, 7:16pm
Forum: Bikes & Bits – Technical section
Topic: Tell me about fork trail.
Replies: 19
Views: 909

Re: Tell me about fork trail.

Hello Dave W I also have a Metabike. I very much enjoy riding it, but I do find the handling a bit strange at times. I don't have lots of experience of other recumbents, but I have had a go on a couple of Nazca ones, and I don't think they had anything strange about the handling. Mine has two 26&quo...
by StephenW
16 Feb 2017, 9:00pm
Forum: Bikes & Bits – Technical section
Topic: Relating eigenvalue plots to subjective handling characteristics
Replies: 5
Views: 302

Re: Relating eigenvalue plots to subjective handling characteristics

Thanks for the link to the previous thread, Colin531. It is interesting. Papadopoulos was one of the people who developed this program. if I take a bicycle that I'm very used to riding, and move the handgrips a long way (maybe 150mm?) towards the handlebars, the bike "feels" very different...
by StephenW
15 Feb 2017, 6:59pm
Forum: Bikes & Bits – Technical section
Topic: Relating eigenvalue plots to subjective handling characteristics
Replies: 5
Views: 302

Relating eigenvalue plots to subjective handling characteristics

Hello Bicycle geometry and handling seems to be something that causes a lot of confusion and excitement. Some boffins have created a program which solves* the differential equations that describe an uncontrolled bicycle. (i.e. where the rider's hands are not touching the handlebars and the rider mak...
by StephenW
15 Feb 2017, 6:18pm
Forum: Bikes & Bits – Technical section
Topic: Rain cape / Poncho
Replies: 15
Views: 2078

Re: Rain cape / Poncho

This fellow has tried several capes and eventually made his own:

http://drewsminiblog.blogspot.co.uk/201 ... -cape.html

I have the yellow pro-route Carradice cape. I quite like it, although I haven't used any others. I could imagine a heavier cape being more comfortable.
by StephenW
2 Nov 2016, 9:08pm
Forum: Bikes & Bits – Technical section
Topic: Non-Dynamo crown mounted front lights..
Replies: 7
Views: 1118

Re: Non-Dynamo crown mounted front lights..

I have this one: http://en.hollandbikeshop.com/bicycle-lights/union-bicycle-lights/union-headlight-battery/union-headlight-classic/union-headlight-un-4915-retro-led-on-batteries-black/ I haven't had it long enough to give a full review. It is 20 lux, and I find it reasonably bright. It made a set of...
by StephenW
2 Nov 2016, 6:21pm
Forum: Bikes & Bits – Technical section
Topic: 26" hub brake compatible fork
Replies: 16
Views: 1491

Re: 26" hub brake compatible fork

Hello Nigel I got a bargain deal on a complete wheel from eBay with the X-FD hub. I'm still using a B&M sidewall dynamo. Although this is less efficient than a hub dynamo when in use, I believe the Sturmey-Archer hub dynamo has almost the same drag with the lights on and off, so it could be that...
by StephenW
31 Oct 2016, 9:39pm
Forum: Bikes & Bits – Technical section
Topic: Project -utility bike-
Replies: 49
Views: 5323

Re: Project -utility bike-

This is very interesting! My experience of front racks of this type is limited to the Steco one which turns with the steering (called "Transport"), and more recently the Steco one which mounts to the head tube. I originally bought the rack for carrying my accordion, which weighs 20 kg incl...
by StephenW
31 Oct 2016, 8:54pm
Forum: Bikes & Bits – Technical section
Topic: 26" hub brake compatible fork
Replies: 16
Views: 1491

Re: 26" hub brake compatible fork

At the same time as replacing the fork, I switched from a front rack that turns with the steering to one that is fixed to the head tube. When I put a particularly heavy load on the rack (such as a very large number of cooking apples), the steering "squirms". I can still definitely keep the...
by StephenW
19 Oct 2016, 8:42pm
Forum: Bikes & Bits – Technical section
Topic: IGH lubrication; a smoking gun.
Replies: 124
Views: 12103

Re: IGH lubrication; a smoking gun.

Thanks! This is interesting and very useful. I've had another think, and I've realised that since getting the front drum brake, I am not using the coaster brake so much. (Although it is still very handy when I do want it). Therefore perhaps I am not generating such a large amount of wear debris that...
by StephenW
18 Oct 2016, 8:51pm
Forum: Bikes & Bits – Technical section
Topic: Project -utility bike-
Replies: 49
Views: 5323

Re: Project -utility bike-

Hello Brucey This sounds like an interesting project! Have you made any further progress with it? I agree that a frame-mounted rack feels nicer with heavy loads than one that turns with the steering. I hear people (like Jan Heine for example) talking about low trail geometry being good for front loa...
by StephenW
30 Sep 2016, 9:43pm
Forum: Bikes & Bits – Technical section
Topic: 26" hub brake compatible fork
Replies: 16
Views: 1491

Re: 26" hub brake compatible fork

Thanks Brucey. The shimmy problem is now solved! The new wheel came with two washers on each side, so I thought I'd better use them. The fork had a circular, slightly recessed area, which was a little smaller in diameter than the washer. The washers had to bend a little, which I thought was OK. Anyw...
by StephenW
26 Sep 2016, 6:24pm
Forum: Bikes & Bits – Technical section
Topic: IGH lubrication; a smoking gun.
Replies: 124
Views: 12103

Re: IGH lubrication; a smoking gun.

I had a notion that I had read something in a Sutherland's manual on Sheldon Brown's site about oil and grease for some three-speed coaster brake hubs, and just oil for others. I went back and had another look, and you are right, it is grease for the brake and oil for the gears. But single speed coa...
by StephenW
21 Sep 2016, 6:44pm
Forum: Bikes & Bits – Technical section
Topic: IGH lubrication; a smoking gun.
Replies: 124
Views: 12103

Re: IGH lubrication; a smoking gun.

I'm interested by this: Using oil in coaster brakes isn't normally such a good idea because the brake can too easily run dry. I know that there have been single-speed and multi-speed coaster brake hubs with oil lubrication in the past. Is there some particular feature of these hubs that makes them m...
by StephenW
5 Sep 2016, 8:59pm
Forum: Bikes & Bits – Technical section
Topic: 26" hub brake compatible fork
Replies: 16
Views: 1491

Re: 26" hub brake compatible fork

Hello everyone I bought and fitted the fork from Holland bike shop that I linked to earlier. However, I have a concern. The stem is rather a loose fit in the steerer tube. When the quill is tightened, there is still some play between the fork and the stem. (Just to be clear, I am not talking about a...
by StephenW
3 Aug 2016, 10:28am
Forum: Bikes & Bits – Technical section
Topic: 26" hub brake compatible fork
Replies: 16
Views: 1491

Re: 26" hub brake compatible fork

Hello Cotterpins

Thanks for that. Unfortunately I don't think the steerer tube will be long enough - needs to be about 25cm for my bike.

But thanks anyway.